ITEM NAME:8V-24V Led Digital Car Clock Thermometer Temperature Voltage Tester Date Di H8K1 ☆★ Product Details ★☆ 8V-24V Led Digital Car Clock Thermometer Temperature Voltage Tester Date Di H8K1 Voltage Display Range: 8~24V Temperature Display Range: -40~75 °C With temperature error manual correction function, setting range: -5~5 °C Built in super long life battery makes it keep working when car stops with no power supply 4 Display Modes:Time only;Temperature only;Voltage only;Time Temp voltage alternating display; Material: Plastic Display: LED Display color: blue Color: Black Size: 133*26*23mm Package contents: 1* car electronic clock